D Preparation(2)pdf x Chegg Study I Guided sex C Secure https:// d-52441327 2/ c

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D Preparation(2)pdf x Chegg Study I Guided sex C Secure https:// d-52441327 2/ cohort1/Prepara campus n%282%29 pd Apps D New Tab Online Derivative Calc 24 ITSDocs: Create, Co In Unix, how do I list t db vivim notes n Unix, how do Ichar D C-String Password-C O Introduction to oop Implementing Sieve c 12 13 Preparation(2).pdf Exercise 5: Suppose that the red line railway arrives according to a Poisson process with a rate of 4 per hour, and the blue line 5 per hour. Moreover, the arriving time of the red line is independent with that of the blue line. Suppose that Ellen can take either the red line or the blue line to her destination. Find the probability that she needs to wait at least 10 minutes in the railway station 12 :32 AM

Explanation / Answer

here average time for red line =60/4=15 minute

and that for blue line =60/5 =12 minute

probabilty that she has to wait 10 minutes =P(red line will not appear)*(blue line will not appear)

=(e-10/15)*(e-10/12)= 0.2231

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